A and B are two alloys of gold and copper prepared by mixing metals in the ratio 7 : 2 and 7:11 respectively.If equal quantities of the alloy are melted to form a third alloy C - the ratio of gold and copper in C will be :

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A and B are two alloys of gold and copper prepared by mixing metals in the ratio 7 : 2 and 7:11 respectively.If equal quantities of the alloy are melted to form a third alloy C - the ratio of gold and copper in C will be :






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